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Posted to yarn-dev@hadoop.apache.org by "sidharta seethana (JIRA)" <ji...@apache.org> on 2014/10/08 02:25:35 UTC

[jira] [Created] (YARN-2653) Support an AM liveness mechanism that works for both sync/async AM-RM clients

sidharta seethana created YARN-2653:
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             Summary: Support an AM liveness mechanism that works for both sync/async AM-RM clients
                 Key: YARN-2653
                 URL: https://issues.apache.org/jira/browse/YARN-2653
             Project: Hadoop YARN
          Issue Type: Improvement
          Components: client, resourcemanager
            Reporter: sidharta seethana
            Priority: Minor


Currently, the “heartbeat” mechanism is only supported in the async client ( AMRMClientAsyncImpl ). The reason for this seems to be because liveness monitoring is currently implemented based on periodic (possibly empty) allocation requests - which may return container allocation responses for earlier allocation requests. This mechanism only works for the async client where allocation responses can be queued and is not application to the synchronous/blocking client. 



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